Reconsideration of rules in tables with non-deterministic data

This paper briefly surveys rough set-based framework RNIA (Rough Non-deterministic Information Analysis), which can handle tables with non-deterministic data. Each rough set-based concept in the standard tables is redefined based on the possible world semantics. Especially, in rule generation, we reconsider the definition of rules, because the standard definition of rule generation cannot be applicable to defining rules in RNIA. In this paper, we describe the new framework for handling rules in RNIA, which gives us new rule-based table data analysis.